src/chrome/browser/ui/ash/ash_keyboard_controller_proxy.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_ASH_ASH_KEYBOARD_CONTROLLER_PROXY_H_
   6 #define CHROME_BROWSER_UI_ASH_ASH_KEYBOARD_CONTROLLER_PROXY_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "content/public/browser/web_contents_observer.h"
  11 #include "extensions/browser/extension_function_dispatcher.h"
  12 #include "ui/keyboard/keyboard_controller_proxy.h"
  13
  14 namespace content {
  15 class WebContents;
  16 }
  17 namespace extensions {
  18 class ExtensionFunctionDispatcher;
  19 class WindowController;
  20 }
  21 namespace gfx {
  22 class Rect;
  23 }
  24 namespace ui {
  25 class InputMethod;
  26 }
  27
  28 // Subclass of KeyboardControllerProxy. It is used by KeyboardController to get
  29 // access to the virtual keyboard window and setup Chrome extension functions.
  30 class AshKeyboardControllerProxy
  31     : public keyboard::KeyboardControllerProxy,
  32       public content::WebContentsObserver,
  33       public extensions::ExtensionFunctionDispatcher::Delegate {
  34  public:
  35   AshKeyboardControllerProxy();
  36   ~AshKeyboardControllerProxy() override;
  37
  38  private:
  39   void OnRequest(const ExtensionHostMsg_Request_Params& params);
  40
  41   // keyboard::KeyboardControllerProxy overrides
  42   content::BrowserContext* GetBrowserContext() override;
  43   ui::InputMethod* GetInputMethod() override;
  44   void RequestAudioInput(
  45       content::WebContents* web_contents,
  46       const content::MediaStreamRequest& request,
  47       const content::MediaResponseCallback& callback) override;
  48   void SetupWebContents(content::WebContents* contents) override;
  49   void ShowKeyboardContainer(aura::Window* container) override;
  50
  51   // The overridden implementation dispatches
  52   // chrome.virtualKeyboardPrivate.onTextInputBoxFocused event to extension to
  53   // provide the input type information. Naturally, when the virtual keyboard
  54   // extension is used as an IME then chrome.input.ime.onFocus provides the
  55   // information, but not when the virtual keyboard is used in conjunction with
  56   // another IME. virtualKeyboardPrivate.onTextInputBoxFocused is the remedy in
  57   // that case.
  58   void SetUpdateInputType(ui::TextInputType type) override;
  59
  60   // extensions::ExtensionFunctionDispatcher::Delegate overrides
  61   extensions::WindowController* GetExtensionWindowController() const override;
  62   content::WebContents* GetAssociatedWebContents() const override;
  63
  64   // content::WebContentsObserver overrides
  65   bool OnMessageReceived(const IPC::Message& message) override;
  66
  67   scoped_ptr<extensions::ExtensionFunctionDispatcher>
  68       extension_function_dispatcher_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(AshKeyboardControllerProxy);
  71 };
  72
  73 #endif  // CHROME_BROWSER_UI_ASH_ASH_KEYBOARD_CONTROLLER_PROXY_H_